*156A Finals Week

Overview of Status of Analysis, Design, Fabrication, Tests, etc.

• • Got several "rapid prototyping" quotes - Polyjet and SLA methods.

    • It's going to be more expensive than doing it on campus (~$125 per tray and lid using design studio).

    • Outsourced 3D prototyping will have higher quality (layers of 0.05 mm as opposed to 0.25 mm). Design studio 3D Printer would require additional heavy fill primer and sanding.

  • Got one quote on injection molding

    • ~$6000 for mold tooling

    • Each tray (not including lid) is about $4 to produce (qty of 100); therefore 25 samples ~$100 (but there's the upfront cost of tooling!)

  • Looking at SolidWorks changes needed for injection molding: Surfacing instead of lots of fillets; Draft angles and thicknesses

  • Looking at CNC possibilities -- Talk to Tom and Isaiah at the Machine Shop for possible pricing info and other details

  • Created several whale shapes and other designs based from the sponsors sample artwork

  • 3D printer was down, so no 3D print done

Accomplishments from Previous Week

• • Discussed Risk Reduction PowerPoint overview and presentation.

  • Continued SolidWorks model - focus on whale design.

  • Drew up some other possible shape designs based on the sponsors sample artwork.

  • Discovered possible online stores for suction cup possibilities: www.anver.com; www.allvacindustries.com

Goals for Next Week (list names after each item). Use specific and measurable objectives.

• • Narrow down shape designs to one (Some possibilities are whale, penguin, elephant)

  • Start making SolidWorks models based on the chosen shape design, two prototypes with the same animal shape:

    • Interlock

    • Snap on lock

Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)

• • 3/19/12

  • Liked the latest whale shape, but is open to other animal shapes

  • Wants to have two physical prototypes with both lid features

  • Suggestion to survey more mothers (in addition to the sponsor herself)

  • Doe

Instructor Comments from Last Meeting and Actions Taken to Address these Comments  (indicate date of comments and if via email or in person)

• • N/A

Comments from Other Students in the Class (indicate date of comments and if via email or in person)

• • 3/20/12

  • A lot of input on shape design, though most of them were considered already

    • Generic shape like circle

    • Other shapes like fish, Spongebob, face

  • Suction force to fasten lid (create vacuum in food compartment)

  • Too much detail in presentation making it too long

Risks and Areas of Concern

• • Lid integration

  • Suction cup integration

Resources or Information Required but not Available

• • N/A

Schedule

• • Narrow down shape designs by 4/2/2012, show the best ones to the sponsor.

  • Ready to CnC one prototype by 4/9/2012.

Budget (list amount spent and amount remaining)

• • Budget increased to $1000, none spent

Progress on Report and Webpage

• • N/A